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DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. At a given speed - the centripetal force - the smaller the circle.
Newtons first principle of Universal Gravitation
Third principle of Centripetal force
Increasing speed and constant acceleration
Halogen radicals interfering in ozone synthesis

2. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
Increases the energy
5 m/s
Might stay the same
12 miles per hour

3. When you add heat to a substance - its temperature...
Universal
Disorder
Might stay the same
Newtons second principle of Universal Gravitation

4. Which is not one of the fundamental forces of nature...
Means less power is transmitted
Disorder
Universal
Mechanical - chemical - and radiant energy

5. The work that a heat engine is able to accomplish is ideally equivalent to the
Decreased
Difference between the heat supplied and the heat exhausted
Newtons second principle of Universal Gravitation
First principle of Centripetal force

6. cogeneration uses...
Halogen radicals interfering in ozone synthesis
Universal
Newtons third principle of Universal Gravitation
Waste heat for secondary uses

7. Electromagnetic radiation can be viewed as...
Disorder
Waves and particles
Difference between the heat supplied and the heat exhausted
Mechanical - chemical - and radiant energy

8. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Newtons third principle of Universal Gravitation
Third principle of Centripetal force
Mechanical - chemical - and radiant energy
Remains unchanged

9. From the 50's and to the 70's - the pH of rain in the northeast had..
Means less power is transmitted
Movement
Decreased
Halogen radicals interfering in ozone synthesis

10. The gravitational force - two masses are directly proportional to the mass of each object
Newtons second principle of Universal Gravitation
Newtons first principle of Universal Gravitation
Increases the energy
Heat of fusion

11. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Increasing speed and constant acceleration
Newtons third principle of Universal Gravitation
Mechanical - chemical - and radiant energy
First principle of Centripetal force

12. The larger the centripetal force - the faster an object travels in a circle of a given size
Second principle of Centripetal force
Increasing speed and constant acceleration
Momentum
Disorder

13. The theoretical production curve of oil indicates oil production is...
Waves and particles
Increases the energy
Near a maximum
Mechanical - chemical - and radiant energy

14. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
Remains unchanged
Universal
Increases the energy
12 miles per hour

15. Increasing the frequency of light
Decreased
Increases the energy
Newtons third principle of Universal Gravitation
Halogen radicals interfering in ozone synthesis

16. If a charging elephant has kinetic energy - it must also have...
Momentum
263 degrees kelvin
Less on the moon
Means less power is transmitted

17. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
First principle of Centripetal force
Second principle of Centripetal force
Means less power is transmitted
Mechanical - chemical - and radiant energy

18. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Universal
Newtons third principle of Universal Gravitation
Total internal energy of an object
Might stay the same

19. All objects with mass are attracted to another by the gravitational force
Mechanical - chemical - and radiant energy
Increasing speed and constant acceleration
Newtons first principle of Universal Gravitation
Twice the work

20. Circular motion requires centripetal force
Waste heat for secondary uses
Third principle of Centripetal force
Waves and particles
First principle of Centripetal force

21. The reason that a spear fisherman cannot see where the fish is actually located is...
Remains unchanged
Difference in the sped of light in water vs. air
Disorder
Waves and particles

22. Heat is the...
Newtons first principle of Universal Gravitation
Newtons third principle of Universal Gravitation
Total internal energy of an object
Less on the moon

23. Electrical energy can be converted to...
Mechanical - chemical - and radiant energy
Means less power is transmitted
Difference between the heat supplied and the heat exhausted
Waste heat for secondary uses

24. The ozone hole results from...
263 degrees kelvin
Third principle of Centripetal force
Movement
Halogen radicals interfering in ozone synthesis

25. A temperature of -10 degrees celsius is equivalent to...
263 degrees kelvin
Increasing speed and constant acceleration
Less on the moon
Waves and particles

26. Raising an auto in a service station requires work. Raising it twice as high requires...
Means less power is transmitted
Disorder
Twice the work
Universal

27. In a generator - the flow of electrons (current) is created by...
Movement
263 degrees kelvin
5 m/s
Total internal energy of an object

28. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Heat of fusion
Increases the energy
Mechanical - chemical - and radiant energy
First principle of Centripetal force

29. The weight of one kilogram of iron on earth is...
Universal
Disorder
Near a maximum
Less on the moon

30. Entropy refers to...
Increasing speed and constant acceleration
Means less power is transmitted
Disorder
Difference between the heat supplied and the heat exhausted

31. In burning coal - what contaminant is of major concern as a pollutant...
Mechanical - chemical - and radiant energy
Sulfur
Third principle of Centripetal force
First principle of Centripetal force